Their social media post contained an error

The Prince and Princess of Wales arrive to greet the President of France Emmanuel Macron and his wife Brigitte Macron at RAF Northolt, north London, on day one of the French President's state visit to the UKThe Prince and Princess of Wales arrive to greet the President of France Emmanuel Macron and his wife Brigitte Macron at RAF Northolt, north London, on day one of the French President’s state visit to the UK

Prince William and Kate Middleton were forced to delete a social media post over a blunder.

On the Kensington Royal X account, a poignant tribute to the victims of the 7/7 London bombings was posted.

But the emotional message had to be deleted due to an error.

The post began with the words “And copy” before the tribute began.

The rest of the message read: “Remembering the victims of the 7/7 attacks on this 20 year anniversary by joining survivors and bereaved families at the Memorial Gardens in Hyde Park this afternoon.”

There were also photos of a sombre looking Prince William laying flowers on the permanent memorial site.

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The post was quickly deleted before it was then reposted without the words “And copy”, Mirror reports.

A video of Prince William paying his respects at the tribute was also shared along with the caption: “Our thoughts remain with the families and friends of those who lost their lives, and with those who bear the scars of the attacks to this day.”

The social media mistake was quickly corrected but it was enough time for eagle-eyed fans to spot the blunder.

It came after Prince William joined survivors of the London bombings, along with loved ones of victims, for a memorial on Monday, July 7.

It marked 20 years since the four bombs went off on London’s public transport network, killing 52 people and injuring more than 700 others.

Following the hour-long service, Prince William joined others for a private reception at a tea tent some 100 yards from the memorial.

Families, wearing a mixture of all black and brightly coloured outfits, walked over to a monument of 52 steel pillars, each representing one of the victims.

They saw names of their loved ones engraved on the memorial, alongside the time of death and the date of death as July 7, 2005.

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